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Freshwater Fish Species

All freshwater fish species found in rivers, lakes, streams, and ponds worldwide. From tiny tetras to the giant arapaima — covering every continent.

18,067
Total Species
1,926
Endangered (EN+CR)
1,910
Edible Species
204
Families
Filtered Least Concern ✕ Clear all
Kamaka rainbowfish
Melanotaenia kamaka
Melanotaeniidae Least Concern
Kamiranzovu Haplo
Haplochromis kamiranzovu
Cichlidae Least Concern
Kanawha darter
Etheostoma kanawhae
Percidae Least Concern
Kanawha minnow
Phenacobius teretulus
Cyprinidae Least Concern
Kane's cory
Hoplisoma kanei
Least Concern
Kantaka barb
Kantaka brevidorsalis
Least Concern
Kashgarian loach
Hedinichthys yarkandensis
Nemacheilidae Least Concern Edible
Katibasia Insidiosa
Katibasia insidiosa
Least Concern
Kentucky darter
Etheostoma rafinesquei
Percidae Least Concern
Kerala mystus
Mystus armatus
Bagridae Least Concern Edible
Kessler's gudgeon
Romanogobio kesslerii
Cyprinidae Least Concern
Kessler's loach
Paraschistura kessleri
Nemacheilidae Least Concern
Kessler's sculpin
Leocottus kesslerii
Cottocomephoridae Least Concern
Keyhole cichlid
Cleithracara maronii
Cichlidae Least Concern
Khadary-whitefish
Coregonus chadary
Salmonidae Least Concern
Khandalla minnow
Parapsilorhynchus tentaculatus
Cyprinidae Least Concern
Khanka gudgeon
Squalidus chankaensis
Cyprinidae Least Concern
Khanka spiny bitterling
Acanthorhodeus chankaensis
Cyprinidae Least Concern Edible
Khasi garra
Garra nasuta
Cyprinidae Least Concern
Khavli barb
Puntius sahyadriensis
Cyprinidae Least Concern Edible
Khwae Badis
Badis khwae
Badidae Least Concern
Kibonde
Chrysichthys brachynema
Bagridae Least Concern Edible
Kimberley archerfish
Toxotes kimberleyensis
Toxotidae Least Concern
Kimberley grunter
Syncomistes kimberleyensis
Terapontidae Least Concern
Kimberley mogurnda
Mogurnda oligolepis
Eleotridae Least Concern
Kimberley spangled perch
Leiopotherapon macrolepis
Terapontidae Least Concern Edible
Kinneret bleak
Mirogrex terraesanctae
Cyprinidae Least Concern
Kissing gourami
Helostoma temminckii
Least Concern
Kissing prochilodus
Semaprochilodus insignis
Prochilodontidae Least Concern
Kite Poptella
Poptella longipinnis
Acestrorhamphidae Least Concern
Kizilirmak sportive loach
Oxynoemacheilus samanticus
Nemacheilidae Least Concern
Klausewitzia Ritae
Klausewitzia ritae
Least Concern
Kneria Angolensis
Kneria angolensis
Kneriidae Least Concern
Kneria Katangae
Kneria katangae
Kneriidae Least Concern
Kneria Paucisquamata
Kneria paucisquamata
Kneriidae Least Concern
Kneria Rukwaensis
Kneria rukwaensis
Kneriidae Least Concern
Kneria Stappersii
Kneria stappersii
Kneriidae Least Concern
Kneria Wittei
Kneria wittei
Kneriidae Least Concern
Knife livebearer
Alfaro cultratus
Poeciliidae Least Concern
Knobfin sculpin
Cottus immaculatus
Cottidae Least Concern
Knobnose whiptail catfish, Pinocchio whiptail catfish
Hemiodontichthys acipenserinus
Loricariidae Least Concern
Knodus Alpha
Knodus alpha
Stevardiidae Least Concern
Knodus Chapadae
Knodus chapadae
Stevardiidae Least Concern
Knodus Gamma
Knodus gamma
Stevardiidae Least Concern
Knodus Geryi
Knodus geryi
Stevardiidae Least Concern
Knodus Heteresthes
Knodus heteresthes
Stevardiidae Least Concern
Knodus Hypopterus
Knodus hypopterus
Stevardiidae Least Concern
Knodus Moenkhausii
Knodus moenkhausii
Stevardiidae Least Concern